Sectional mounting of charts, &amp;c.



J. H. BARNARD.

SECTIONAL MOUNTING 0F CHARTS, &c.

APPLICATION FILED SEPT. I0. 1913.

Lo Patentd May 8, 191?.

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UNITE@ STATE@ PATENT @FFIQE JOHN H. BARNARD, OF BROOKLYN, NEW YORK.

SECTIONAL MOUNTING OF CHARTS, &c.

Application led September 10, 1913.

To all whom t may concern:

Be it known that I, JOHN Il. BARNARD, a citizen of the United States,and a resident of the borough of Brooklyn, city and State of New York,have invented certain new and useful Improvements in Sectional Mounting`of Charts, &c., of which the following is a specification.

rIhis invention relates to sectional mountings for charts, maps,drawings and the like, b v the use of which charts, etc., may be moreconveniently stored and can be readily combined or put together for use.

In order that the details of a chart or drawing may be studied ormeasured it should be kept ilat, but under many conditions this isdi'tlicult. Often the area to be studied forms the margin of one drawingand the adjoining edge of another, both of which may be large incomparison to the portion of interest to be studied. Frequently, also,charts or drawings must be studied in contracted spaces and sometimespossibly in winds.

In the improved form of mountings the diliiculties heretoforeencountered are entirely overcome or greatly minimized.

In one embodiment of the invention there is provided a series ofinterlocking blocks of similar outline and of only sutlicient thicknessfor the conditions under which the drawings are to be used. Preferablythe blocks should be made of material which combines suflicient strengthand lightness and neither warps nor absorbs moisture. For most purposeshard rubber is suitable, but there is a great variety of materials whichwill fulfil all the requirements and I do not limit myself to anyparticular material.

The individual blocks may be placed and retained -in proper relativeposition by interlocking one block to another, each block locking upon aslab carrying all the blocks,

or by interlocking' with each other and with the slab. The first meansrequires thicker and stronger blocks to afford the necessary mechanicalstrength, and consequently more room is required for the storagethereof. Of the two ways that of locking with each other and with theboard seems best for the reason that in many instances more blocks maybe needed at once than a board adapted to the usual number of blocks cancarry and in such case the eXtra blocks may be placed and retained inposition. on any Specification of Letters'atent.

Patented May 3, 19M.

Serial No. 789,018.

suitable flat surface. As each means, however, may be best adapted tospecial purposes, there is shown in the drawing examples of each, but Ido not limit myself to either one of these means or to any particularmeans.

rIhe invention will be more fully understood from the followingdescription taken in connection with the accompanying drawing, in which:

Figure l represents a plan view of one type of the invention with twoblocks removed.

F-ig. 2 is an edge view of the same.

Fig. 3 is a sectional view on line 3 of Fig. l on an enlarged scale.

Fig. s is a perspective of the under side of one of the blocks used inFig. l.

Fig. 5 is a sectional view of a modification.

Fig, 6 is a perspective view of one of the locking means for securingtogether the adjacent sections of blocks shown in Fig. 5.

0n the drawing the part marked 20 represents a board which is providedwith a series of studs 2l with the heads 22 set above the upper surfaceof said board. On the edge of the board is provided a series oflongitudinal adjustable clamps 23 which are mounted against a. plate 24having slots 25 therein, through which project the set bolt nuts 26 tosecure the clamp in position. 30 represents the blocks7 the under sidesof which are provided with the Crossed undercut grooves 31, whichreceive the heads of the studs 21 when the blocks are in place. Two ofthe edges of each of the blocks are provided with grooves 32 and theother edges are provided with the tongues 33.

I/Vhen the blocks are in place on the board, as shown, said tongues 33fit into the grooves 32 of the adjacent blocks and hold the blocks inthe same plane. rIhe undercut grooves 31 permit the blocks to be slid ormoved over the studs 2l both longitudinally and transversely of thehoard. The clamps are arranged so that they take up against the outeredges of the marginal blocks and hold them in proper position.

40 represents a part of a map or drawing on the upper face of the block,which map or drawing may be on a sheet of paper and pasted on the block.rlhe arrangement is lsuch that when the blocks are in proper place 0nthe board the adjacent edges of the map or drawing will register.

In Fig. 5 there is shown a construction in which the board on which theblocks are to be mounted is dispensed with and the blocks are securedtogether edge to edge. In this construction it is necessary to form theblocks much thicker than in the previous construction. l In thisconstruction the blocks are marked 50 and the under side of each blockis provided with the recesses 51. Projecting into each recess is akeeper 52. 55 is the locking` means which consist of two plugs 56 to beinserted in the recesses 5l. The plugs are joined 'together by the bar53 and the inner surface of each plug is provided with a spring catch 57which snaps over the keeper 52 and locks together as shown in Fig. 5.

Various other modifications may be used without departing from thespirit and scope of the invention.

The device as constructed according 'to Figs. l, Q and 3 of the drawingis operated as follows: Suppose that part of the chart represented bythe block marked Z) is being used and some part of, the chart shownabove Zn and c is shortly'to be used; in this case the blocks a and Zare removed by loosening and moving the slides 23, and then the blocksZ) and e are moved downwardly so that the block c is at the bottom ofthe board, and Z) is removed to Where e is at the present time; thenboth ZJ and e are moved to the left of the board.

rilhe block i can be removed and c and f can be moved toward the bottomof the board and then moved to the left so that additional blocksshowing the chart above b and c and to the right of c and j can beplaced on the board.

Having now described my invention what Iv claim as new and desire tosecure by Letters Patent, is:

l. A chart comprising a plurality of sections each of the same area andinter-engaging means on the edges of the sections to lock the sectionstogether and position their edges in alinement.

2. A sectional mounting for charts, drawings and so forth, consisting ofa series of sections each carrying a part of the chart or drawing, and asupport, the sections being provided with means for interlocking themwith each other and with the support so that consecutive sections willproduce a combined area made from the several sections.

3. A chart comprising a plurality of sections each of the same area andinter-engaging means on the edges of the sections to lock the sectionstogether and position their edges m almement, a support for each .ofsaid sections and means for securing each section to said support.

4i. A chart comprising a plurality of sections each of the same area anddove-tail engaging means on the edges of the sections to lock thesections together and position their edges in alinement.

5. A sectional mounting for charts, drawings and so forth, consisting ofa series of blocks each carrying a part of the chart, and aslab, theblocks being provided with means for interlocking themwith each otherand with the slab, so that, consecutive sections of a print or drawing,will produce a combined area. made from each of several charts ordrawings.

6. A sectional mounting for charts, drawings and so forth, consisting ofa series of blocks each carrying a part of the chart, and a slab, theblocks being provided with means for interlocking them with each otherand with the slab, so that consecutive sections of a print or drawingmay be combined to produce a particular area, and which area may beprogressively extended in any one or in any adjacent two of the fourdirections by corresponding subtractions in the opposite direction ordirections.

7. A sectional mounting for charts, drawings or the like, consisting ofa slabI and a series of blocks, each of the blocks carrying` part of achart, said blocks being provided with tongue and groove connections onthe edges thereof, undercut grooves transversely of each 1clock, aseries of studs carried by said slab to coperate with said grooves, aseries of transversely movable clamps mounted on said slab, said clampsprovided with means to engage said tongues or grooves, and means forfastening the clamps in position as and for the purpose set forth.

8. A chart comprising a plurality of sec tions each of the same area andinter-engaging means on the adjacent edges of the sections consistingrespectively of tongues and grooves fashioned to fit one within theother to hold the sections together and position their edges inalinement.

In witness whereof I have hereunto set my hand in the borough ofManhattan, city and State of New York, this 28th' day of August 1913.

JOHN I-I. BARNARD. In presence of- IsABnL R. RICHARDS, H. C. OCONNELL.

Copies of thisvpatent may be obtained for ve cents each, by addressingthe Commissioner of Patents. Washington, D. C.

